题目内容：

he were seen to play basketball by me last night.为嘛用 were seen

优质解答

额,被动语态,我觉得应该用was seen.不过这句子,我觉得应该翻译成He was seen playing/play basketball by me last night.play还是playing就看你表达的是不是看到整个过程了,要是看到了整个过程就用play,不是的话就用playing